package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.apache.coyote.Request;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.swing.text.Utilities;
import java.lang.management.LockInfo;
import java.time.LocalDateTime;

@Transactional
@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     * @param request
     * @param employee
     * @return
     */
    //1、将页面提交的密码password进行md5加密处理
    //2、根据页面提交的用户名username查询数据库
    //3、如果没有查询到则返回登录失败结果
    //4、密码比对，如果不一致则返回登录失败结果
    //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
    //6、登录成功，将员工id存入Session并返回登录成功结果
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request,@RequestBody Employee employee){
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> employeeLambdaQueryWrapper = new LambdaQueryWrapper<>();
        employeeLambdaQueryWrapper=employeeLambdaQueryWrapper.eq(Employee::getUsername, employee.getUsername());
        Employee employee1 = employeeService.getOne(employeeLambdaQueryWrapper);

        //3、如果没有查询到则返回登录失败结果
        if(employee1==null){
            return R.error("用户不存在");
        }
        //4、密码比对，如果不一致则返回登录失败结果
        if(!employee1.getPassword().equals(password)){
            return R.error("密码错误");
        }
        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if(employee1.getStatus()==0){
            return R.error("没有权限");
        }
        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee",employee1.getId());
        return R.success(employee1);
    }
    /*@PostMapping("/login")
    public R<Employee> login(HttpServletRequest request,@RequestBody Employee employee){

        //1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3、如果没有查询到则返回登录失败结果
        if(emp == null){
            return R.error("登录失败");
        }

        //4、密码比对，如果不一致则返回登录失败结果
        if(!emp.getPassword().equals(password)){
            return R.error("登录失败");
        }

        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if(emp.getStatus() == 0){
            return R.error("账号已禁用");
        }

        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }*/

    /**
     * 员工退出
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //清理Session中保存的当前登录员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    /**
     *新增员工信息
     * @param employee
     * @param request
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody Employee employee,HttpServletRequest request){

        log.info("本次新增员工的信息为：{}",employee.toString());

        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

        /*employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());

        Long userId = (Long) request.getSession().getAttribute("employee");

        employee.setCreateUser(userId);
        employee.setUpdateUser(userId);*/

        employeeService.save(employee);

        return R.success("员工信息录入成功");

    }

    @GetMapping("/page")
    public R<Page> page(Integer page,Integer pageSize,String name){

        log.info("page = :{},pageSize = :{},name = :{}",page,pageSize,name);

        Page pageInfo = new Page(page, pageSize);

        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<Employee>();

        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);

        queryWrapper.orderByDesc(Employee::getUpdateTime);

        employeeService.page(pageInfo,queryWrapper);

        return R.success(pageInfo);

    }

    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){

        log.info(employee.toString());
        long id =Thread.currentThread().getId();
        log.info("该线程的ID为：{}",id);

        /*Long employeeId = (Long) request.getSession().getAttribute("employee");

        employee.setUpdateUser(employeeId);
        employee.setUpdateTime(LocalDateTime.now());*/

        employeeService.updateById(employee);

        return R.success("修改成功");
    }

    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){

        log.info("用户的ID为：{}",id);

        Employee employee = employeeService.getById(id);

        if (employee!=null) {
            return R.success(employee);
        }
        return R.error("没有查询对应员工信息");

    }
}
